Two-stage sulfur hexafluoride degradation reactor based on dielectric barrier discharge and treatment method thereof

The invention discloses a two-stage sulfur hexafluoride degradation reactor based on dielectric barrier discharge, which is of a two-stage structure, the two-stage structure can form two different and independent discharge systems under two plasma power supplies, and each discharge system is a degradation reactor. The degradation reactor comprises a first-stage degradation reactor and a second-stage degradation reactor, the front-stage degradation reactor and the rear-stage degradation reactor share a long-distance inner electrode with a small inner diameter as a low-voltage electrode to construct an electric field, and dense high-energy particles are generated in the two degradation reactors and collide with gas molecules entering the high-energy particles to be decomposed. Harmful component gas in tail gas can be completely absorbed by alkali liquor, then the tail gas can be directly discharged into the atmosphere, complete harmless discharge is achieved, the SF6 waste gas degradation rate and the energy ef